The only one of the terrorists confirmed to be under suspicion by British authorities was Khuram Butt, and with very good reason: Butt had gone so far as to appear in a documentary with British radical Islamist preacher Anjem Choudary and had links to the preacher’s banned extremist group, al-Muhajiroun.

According to the London Guardian, Choudary has been linked to the recruitment of over 100 suspected British terrorists. And Butt was hardly trying to hide his links to the hate preacher; the 27-year-old Pakistani-born Butt was featured as one of Choudary’s prominent acolytes in the 2016 television documentary “The Jihadis Next Door.”

It wasn’t just his links to Choudary and al-Muhajiroun that should have drawn suspicion, either. Authorities had received at least two reports regarding Butt’s behavior. In one, someone said that the Butt was trying to radicalize children at a local park. Another individual reported that Butt was watching clips of an extremist preacher.

“People are going to look at the front pages today and they’re going to say, ‘How on earth could we have let this guy, or possibly more, through the net?’” British Foreign Secretary Boris Johnson said.

The London Metropolitan Police continue to stand by their investigation into Butt.

“Looking back over the information we had at the time, so far, there is nothing to show that poor decisions were made. We will probably discover communications during that period that we couldn’t access that would have changed the situation,” a spokesman said.

Yes, we are going to question the security systems if they nearly captured one of the individuals but decided to let him go.

The fact that these individuals managed to slip through, when some of them had very dangerous connections, shows that our systems are failing and need to be fixed.

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